2011 ecoboost noise on start up
08-28-2015, 11:03 AM
#1511
Senior Member
The rear wheel drive chains on a MC are not in a clean, oil bathed environment. The cam chains in MC's are very similar to the EB chains...just much shorter. Those rubber O-rings on the drive chains have been known to fall off with time (not good inside engine).
08-28-2015, 02:56 PM
#1512
I have watched quite a few of the videos of this problem, and the noise seems to last a good 3-4 seconds. Has the noise always lasted this long? Or did it first start-out as a shorter duration noise? I have the 3.7 and just started noticing a very similar noise at cold starts (needs to sit at least 12 hours), but a shorter duration. Mine may last a second or two. It's more of a loud "CLACK" at start-up. I have 26K miles and will be taking it in for diagnosis.
Even thought my issue was intermittent, they are replacing:
Timing chain
timing chain tensioner
cam phasers
belts/seals/etc
08-28-2015, 03:34 PM
#1513
Mine is intermittent as well. It did not do it this morning at start-up, but I am video taping each morning start-up so that I can document it for the dealer. Hopefully I can avoid the situation of "We can't repeat it and can't find anything wrong". I do not have the time to go back and forth with a dealer.
08-29-2015, 10:52 PM
#1514
Mine is intermittent as well. It did not do it this morning at start-up, but I am video taping each morning start-up so that I can document it for the dealer. Hopefully I can avoid the situation of "We can't repeat it and can't find anything wrong". I do not have the time to go back and forth with a dealer.
I had the same concern about the dealer not believing me, but thankfully they diagnosed the issue without my truck throwing a code or anything.
I think this is a known issue. If you describe the issue, they know what to do even if they can't reproduce it. But, stealerships generally suck so I hope you have the same experience as me.
08-30-2015, 01:08 AM
#1515
Senior Member
Replaced passenger side solenoids today. Screens slightly clogged. I doubt this will have an affect on the rattle or performance but we'll see soon.
08-30-2015, 03:27 PM
#1517
Senior Member
It's too early to tell but it actually didn't rattle this morning after sitting 13 hours...and it ran really strong on my little 12 mile trip. But performance has been going up and down like that a lot lately, will need a couple hundred miles to see if it helped anything
08-30-2015, 05:37 PM
#1518
International man of Myst
I wonder if these new phasers have been redesigned or what the difference is? If you Google the part # it seems to be used in all the 3.5 and 3.7 V6's, Ecoboost or not....
It would make sense that they were trying to find a solution as they need to find the root cause, redesign the part, verify the updated part, and then get it into production both at the supplier and at the factory level. I could conceivably think it takes a year to do.
And I don't think all engines would need the fix. Not all engines experience the rattle. Especially in relation to the millions that are on the road.
But great that there is a fix for this issue.
It would make sense that they were trying to find a solution as they need to find the root cause, redesign the part, verify the updated part, and then get it into production both at the supplier and at the factory level. I could conceivably think it takes a year to do.
And I don't think all engines would need the fix. Not all engines experience the rattle. Especially in relation to the millions that are on the road.
But great that there is a fix for this issue.
In short, we have something to address the symptoms. We still don't know what the actual problem is, and therefore don't know if this fixes that as well. I would hope that ford does, but they seemed to do a lot of guess and check with customers vehicles on the CAC issue...
08-30-2015, 06:16 PM
#1519
Senior Member
I have my doubts that this a fix. If the parts haven't been modified and nobody is reporting a modified installation procedure, i'm not sure it will do much other than kick the can down the road. If the problem is something like a design flaw, machining flaw in the block or other parts, etc, people might get the tick again. If it's just the results of a tolerance stackup, then maybe changing everything will result in the prevention of further issues.
In short, we have something to address the symptoms. We still don't know what the actual problem is, and therefore don't know if this fixes that as well. I would hope that ford does, but they seemed to do a lot of guess and check with customers vehicles on the CAC issue...
In short, we have something to address the symptoms. We still don't know what the actual problem is, and therefore don't know if this fixes that as well. I would hope that ford does, but they seemed to do a lot of guess and check with customers vehicles on the CAC issue...
I am not on the phaser bandwagon yet, not until I am able to replace the drivers side solenoids and see if that takes care of it. Maybe it's both I don't know. But I am going the cheaper easier route first
08-30-2015, 06:20 PM
#1520
Senior Member
The solenoids are redesigned they are different than the factory ones. They don't stick out of the valve cover as far, and the plugs are solid on the factory ones you could slide them back and forth